Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 571, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2021.121070
Keywords
Fe-based nanocrystalline alloy; Dealloying; Nanoporous structure; Oxygen evolution reaction; Wastewater treatment
Funding
- Natural Science Foundation of Jiangsu Province [BK20190480]
- Fundamental Research Funds for the Central Universities [30920021156]
- National Natural Science Foundation of China (NSFC) [51871129, 51871120]
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Fe-based alloys with 3D nanoporous structures show promising applications in energy conversion and environmental remediation. In this study, Fe-MG ribbons were used to fabricate np-Fe, which exhibited excellent performance in oxygen evolution reaction and dyeing wastewater treatment. The results highlight the potential of np-Fe as a high-performance catalyst for these applications.
Fe-based alloys with 3D nanoporous structures (np-Fe) are promising catalysts in various fields. In this study, np-Fe is easily fabricated using Fe-based metallic glass (Fe-MG) ribbons to prepare Fe-based nanocrystalline alloys as precursors after chemical dealloying in an HCl solution. The potential applications of np-Fe in energy conversion and environmental remediation are highlighted by oxygen evolution reaction (OER) and dyeing wastewater treatment of an np-Fe800-12h. The results show that np-Fe has excellent OER performance with an overpotential of 230 mV at a current density of 10 mA cm(-2). Moreover, np-Fe exhibits superior degradation capability toward azo dye pollutants and shows improved performance than even its nanocrystalline precursor and Fe-MG. This study thus paves a new avenue for fabricating the desired np-Fe as high-performance catalysts for energy conversion and wastewater treatment applications.
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